Safety lock



Nov 19, 1929.

, G. ANCIRA SAFETY LOCK Filed July 11, 1927 INVENTOR. w wz, 4 MM BY (lie flWTTORA/EYS.

Patented Nov. 19, 1929 r GONZALO Anemia, or nousron, TEXAS SAFETY 'LocK Application filed July 11, 1927. Serial No. 204,783. 1'

This invention relates to new and useful improvements in a safety lock. ()ne object of the invention is to provide a safety lock for preventing the opening of containers, secured by the lock, and for the detection of the violation of such containers, or unauthorizedopening thereof.

With the above and other objects in view this invention has particular relationto cer- 10 mm novel features of construction, operation and. arrangement of parts, an example of which is given in this specification and illustratec in the accompanying drawings, wherein e Figure 1 shows an inside plan view of the lock, partly broken away.

Figure 2 shows a longitudinal sectional view thereof, taken on the line 2-2 of Figure 1, and 2O- Figure 3 shows a fragmentary bottom plan view of a slightly modified form thereof. Referring now more particularly to the drawings, wherein like numerals of reference designate silimar parts in each of the figures the numeral 1 designates one section of the lock as a whole and the numeral 2 designates the other section thereof as a whole. One of said sections may be attached to the body of a box, envelope, or other container, and the other section may be attached to the cover or flap, of said box, or envelope and said sec-v tions then interlocked, to secure the container closed in such a manner that any attempt to gain access to the contents of the container will be indicated by the lock.

The lock section 1 is preferably formed of sheet metal, of rectangular form, with its opposing edges bent around into parallel relation with and underlying the main body portion and forming the underlying flaps 3, 4. The free edges of these flaps overlap and are spaced apart with the flap 4 underlying the flap 3. The margins of the section 1 have sultcable teeth, or spurs 5 adapted to pierce the 'container wall and to be clinched on the inner side thereof to secure the section 1 to the container. At the junction of the flap 3 with the main'body of the section there is an oblong .slot 6, for a purpose presently to be described.

The section 2 of the lock is also preferably formed of sheet metal, has marginal teeth,

or spurs, as 7, adapted to pierce the material of the container and tobe clinched on the inner face thereof to secure said section 2 to the container. This section 2 may be of any desired contour and has a tongue8 reduced in width, with respect to the section 2, and whose free end is formed with an overturned lip 9, turned backwardly at an acute angle thereto. The tongue 8 also has-the underlying wings 10, 10' formed; integrally with, and-flying parallelto said tonguefandnwhose ends, adj acent the section 1 arenas: These wings'are additionally secure'd'in place by means ofa lug 11', cut from theinaterialto'fthe tongue and bent backwardlyove'rtheiii; order to lock the sections together the free end "of the tongue 8 is inserted through the slot 6 and the sections 1 and 2 are moved toward each other until the free end'of the lip V '9 clcarsjthe free edge of the flap 3 and thefree endsofthe wings 1 0 engage under the adjacent portion ortheflap 3, as shownin 1 Figures 1 and 2 Inthe form shown in Figure 3' the wings -10" are overturned one on each. side ofthe'tongue .8, and are secured in such' po'siti'onby the'lugs 11f cutxfro m theina teria'l ofthe tongue 8 and bent-back over said respective wings 10. -When the sections: 1 and 2, of'the form s'liowiringliigure 8 are. locltcd togetherthe wings 10"will embrace the adjacent edge of the section 1, one on each side thereof. The wings 10, 10' protect the slottjagainst the entrance of a-tool for rel-5v leasing the lock. t r p NVhe'n the lip 9 passes the free edge of the flaps it willspring open, or away from the:

tongue'8, and engage over said edge to pre-"f vent the withdrawal of the tongues 8"an'd. the wings, referred to, will'liinit theinwar d insertion'of said tongue. "1 3 The interlocking parts of the lock, which; secure together the parts of the container, to be secured together, are inaccessibleand the container can only be opened by destroy ing the lock or tearing the same from the con tainerf" Whilethedevice has been describedas adapted for use in connection with boxes' and envelopes, it is obvious that it may also be used for other purposes, as with tyingor securing cords or ribbons adapted to be passed 1 such locking device.

around a container with the ends of the tying cord or ribbon fastened together by The fastener may be used with containers of any character or material having parts which are to be secured together. 7 c

What I claim is :1

1. A look of the character described ineluding two sections adapted to be connected to the parts to be fastened together, one section having its opposite margins turned into substantially parallel relation with the main body of said sections, and having a transverse ;slot'between the main body and'one ofxsaid overturned portions, the other seetionhaving a tongue adaptedto enter said ing a tongue adapted to enter said opening name to this specification.

GONZALO ANCIRA.

slot, an overturned lip at the free end of the tongue adapted to engage over the ad jacent one ofsaid overturned margins, a wing carriedby said tongue having a free end adapted to engage over the adjacent section,

when said sections are interlocked together and a lug turned over the wing to hold the same in engaging position. 7

2. A lockcoinprisingtwo sections, means for securing the respective sections of the parts to be fastened together, one section ,having its opposing edges overturned into substantially parallel relation with the main body of said section forming longitudinal flaps and having a slot at the junction of one of said flaps withsaid main body po.r-' tion, the other section having a tongue adaptthrown out from the material of the edto be inserted through said slot, the free 7 end of the tongue beingoverturned form- 'ing a lip adapted to "engage over the free forsecuring the respective sections of the section,.-a tongue carried by the other sec- I margin of the adjacentfiap, a wing carried by saidtongue havinga free end adapted to engage over the adjacentpartof the ad joining. section when said sections are locked together and a'lug carried by the tongue and overlying saidiwingv, v r V H 3... A look composed oftwo sections, means parts to be fastened together, one section havingoneedge overturned forming an underlyingflap and having a slot at the junction of said flap with the main body of said tion ,adapted to be inserted through said slot, spring means carried by the tongue adapted to engage the free margin of said flap, tointerlocksaid sections together, wings carried by said tongue having free ends adapted :to fold upon the tongue and embrace .the other section when-said sections are soflocked together and means carried by the tongue and overlying said wings.

I .4. Alock of the character described comprising two sections, onehaving a catch and being formed with walls adapted to enclose said catch, said walls being formed with an opening through same, the other section hav- 

